Home / 76,381,971.36-114,569,849.88-18,872,794.32

Finding the Fourth Proportional to 76,381,971.36, 114,569,849.88 and 18,872,794.32

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Solution

The fourth proportional to 76,381,971.36, 114,569,849.88 and 18,872,794.32 is: 28,308,423.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,381,971.36 : 114,569,849.88 = 18,872,794.32 : x
  2. Step 2: Convert to fraction form
    76,381,971.36/114,569,849.88 = 18,872,794.32/x
  3. Step 3: Cross multiply
    76,381,971.36x = 114,569,849.88 × 18,872,794.32
  4. Step 4: Simplify right side
    76,381,971.36x = 2,162,253,212,058,516.75
  5. Step 5: Solve for x
    x = 2,162,253,212,058,516.75/76,381,971.36
  6. Step 6: Final answer
    x = 28,308,423.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.